pagespeed::JsKeywords Class Reference

Classes
class	Iterator

Public Types
enum	Type {   kNull, kTrue, kFalse, kBreak,   kCase, kCatch, kConst, kDefault,   kFinally, kFor, kInstanceof, kNew,   kVar, kContinue, kFunction, kReturn,   kVoid, kDelete, kIf, kThis,   kDo, kWhile, kElse, kIn,   kSwitch, kThrow, kTry, kTypeof,   kWith, kDebugger, kClass, kEnum,   kExport, kExtends, kImport, kSuper,   kImplements, kInterface, kLet, kPackage,   kPrivate, kProtected, kPublic, kStatic,   kYield, kNotAKeyword, kComment, kWhitespace,   kLineSeparator, kSemiInsert, kRegex, kStringLiteral,   kNumber, kOperator, kIdentifier, kEndOfInput,   kError }
enum	Flag {   kNone, kIsValue, kIsReservedNonStrict, kIsReservedStrict,   kCanPrecedeRegEx }

Static Public Member Functions
static bool	IsAKeyword (Type type)
static bool	CanKeywordPrecedeRegEx (const StringPiece &name)
static Type	Lookup (const StringPiece &name, Flag *flag)

Friends
class	net_instaweb::JsLexer

Member Enumeration Documentation

enum pagespeed::JsKeywords::Flag

Enumerator
kCanPrecedeRegEx	keywords that can be placed directly before a regex

enum pagespeed::JsKeywords::Type

Enumerator
kNull	literals
kBreak	keywords
kClass	reserved for future use
kImplements	reserved for future use in strict code
kNotAKeyword	Sentinel value for gperf.
kComment	Other types of lexical tokens; returned by lexer, but not gperf. A block or line comment (not including the linebreak).
kWhitespace	Whitespace not containing any linebreaks.
kLineSeparator	Whitespace with linebreaks, but no semicolon insertion.
kSemiInsert	Whitespace that triggers semicolon insertion.
kRegex	A regex literal, such as /foo/i or /a+b*/.
kStringLiteral	A string literal, such as 'foo' or "bar".
kNumber	A numeric literal, such as 3.5 or 017 or .2e+10.
kOperator	An operator or symbol, such as && or <<= or (.
kIdentifier	An identifier (variable name, label, etc).
kEndOfInput	End of input was reached without errors.
kError	A syntax error occurred.

Member Function Documentation

static bool pagespeed::JsKeywords::CanKeywordPrecedeRegEx ( const StringPiece &  name )

static

Returns true if name is a javascript keyword that can precede a regular expression. Keywords such as 'return' and 'throw' can precede a regex '/' but keywords such as 'while' cannot.

static Type pagespeed::JsKeywords::Lookup ( const StringPiece &  name, Flag *  flag  )

static

Finds a Keyword based on a keyword string. If not found, returns kNotAKeyword. Otherwise, this always returns a Type for which IsAKeyword is true.

Friends And Related Function Documentation

friend class net_instaweb::JsLexer

friend

Todo:

TODO(jkarlin): Get rid of the net_instaweb namespace once JsLexer is moved into kernel/js.

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The documentation for this class was generated from the following file:

• pagespeed/kernel/js/js_keywords.h